/**********************************************************************
Copyright (c) 2016 Advanced Micro Devices, Inc. All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
********************************************************************/
#ifndef OPTIONS_H
#define OPTIONS_H

#include <map>
#include <string>

namespace FireRays
{
    ///< The class stores a set of key-value options. 
    ///< The value might be either float or string and 
    ///< lookup is O(nlg(n))
    ///<
    class Options
    {
    public:
        /// Single option
        struct Option
        {
            struct
            {
                std::string strval;
                float floatval;
            } value;

            // Construct from string
            Option(std::string const& val="")
            {
                value.strval = val;
            }

            // Construct from float
            Option(float val)
            {
                value.floatval = val;
            }

            // Interpret as string
            std::string AsString() const
            {
                return value.strval;
            }

            // Interpret as float
            float AsFloat() const
            {
                return value.floatval;
            }
        };

        // Constructor
        Options(){}

        // Set string value
        void SetValue(std::string const& name, std::string const& value);
        // Set float value
        void SetValue(std::string const& name, float value);

        // Get option
        Option const* GetOption(std::string const& name) const;

    private:
        // Options 
        std::map<std::string, Option> values_;
    };
}

#endif